1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Basic circuit question

  1. May 27, 2013 #1
    Hello
    I am new to the forum as well as a new EE student. Can't figure it out this particular diagram in terms of how to find an equivalent resistance. Any kind help would be very very appreciated.
    Thanks in advance. Please see attached.
    Bila
     

    Attached Files:

  2. jcsd
  3. May 27, 2013 #2

    SammyS

    User Avatar
    Staff Emeritus
    Science Advisor
    Homework Helper
    Gold Member

    Hello masum79. Welcome to PF !

    This thread has been moved to the Engineering Homework section.

    Before we can help with homework, you must show some effort towards a solution.

    Hint: No current flows across the gap marked v0 .

    [ IMG]https://www.physicsforums.com/attachment.php?attachmentid=59042&d=1369634684[/PLAIN]
     
  4. May 27, 2013 #3
    Dear SammyS, Thank you for the lead.
    I figure it out since there is not current going through. So, I found Vo to be +2.0V. But my friend said it would be -2.0V. That one I am not sure why It would be minus instead of plus.


    --Bila
     
  5. May 27, 2013 #4
    How did you get +2V?
     
  6. May 27, 2013 #5

    SammyS

    User Avatar
    Staff Emeritus
    Science Advisor
    Homework Helper
    Gold Member

    What is the voltage drop across (either) 300 Ω resistor?

    What is the voltage drop across (either) 200 Ω resistor?
     
  7. May 28, 2013 #6

    CWatters

    User Avatar
    Science Advisor
    Homework Helper

    There is only one 200Ω resistor.

    The magnitude of the voltage difference is indeed 2V. The question now is the polarity.

    The circuit diagram tells you which side is +ve _if_ Vo is a positive number. The OP needs to work out which side actually is more positive than the other.
     
  8. May 28, 2013 #7

    SammyS

    User Avatar
    Staff Emeritus
    Science Advisor
    Homework Helper
    Gold Member

    DUH !

    I've got to proof my posts better !


    Too much cut & paste .
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted



Similar Discussions: Basic circuit question
  1. Basic circuit question (Replies: 4)

  2. Basic Circuit Question (Replies: 2)

  3. Basic circuit question (Replies: 3)

Loading...